Tutorial by Examples: i

This installation assumes hadoop to be pre-installed under hadoop user. Prerequisites: Hue depends on these following packages gcc g++ libxml2-dev libxlst-dev libsasl2-dev libsasl2-modules-gssapi-mit libmysqlclient-dev python-dev python-setuptools libsqlite3-dev ant libkrb5-dev libt...

Detailed instructions on getting installshield set up or installed.

Get-ChildItem -Path $PSScriptRoot This example retrieves the list of child items (directories and files) from the folder where the script file resides. The $PSScriptRoot automatic variable is $null if used from outside a PowerShell code file. If used inside a PowerShell script, it automatically ...

Get-Process | ForEach-Object -Process { $PSItem.Name } Same as $_. Contains the current object in the pipeline object. You can use this variable in commands that perform an action on every object or on selected objects in a pipeline.

[DscResource()] class Ticket { [DscProperty(Key)] [string] $TicketId } A DSC Resource must declare at least one key property. The key property is what uniquely identifies the resource from other resources. For example, let's say that you're building a DSC Resource that represents a ticket...

[DscResource()] class Ticket { [DscProperty(Key)] [string] $TicketId [DscProperty(Mandatory)] [string] $Subject } When building a DSC Resource, you'll often find that not every single property should be mandatory. However, there are some core properties that you'll want to ensure ...

[DscResource()] class Ticket { [DscProperty(Key)] [string] $TicketId # The subject line of the ticket [DscProperty(Mandatory)] [string] $Subject # Get / Set if ticket should be open or closed [DscProperty(Mandatory)] [string] $TicketState [void] Set() { # Creat...

@{ RootModule = 'MyCoolModule.psm1' ModuleVersion = '1.0' CompatiblePSEditions = @('Core') GUID = '6b42c995-67da-4139-be79-597a328056cc' Author = 'Bob Schmob' CompanyName = 'My Company' Copyright = '(c) 2017 Administrator. All rights reserved.' Description = 'It does cool stu...

function Add { [CmdletBinding()] param ( [int] $x , [int] $y ) return $x + $y } Export-ModuleMember -Function Add This is a simple example of what a PowerShell script module file might look like. This file would be called MyCoolModule.psm1, and is referenced from the mod...

$FirstName = 'Bob' Export-ModuleMember -Variable FirstName To export a variable from a module, you use the Export-ModuleMember command, with the -Variable parameter. Remember, however, that if the variable is also not explicitly exported in the module manifest (.psd1) file, then the variable wil...

Rather than defining all of your functions in a single .psm1 PowerShell script module file, you might want to break apart your function into individual files. You can then dot-source these files from your script module file, which in essence, treats them as if they were part of the .psm1 file itself...

In order to install an extension as a normal add-on into Release or Beta versions of Firefox greater than, or equal to, version 48, the extension must be signed by Mozilla. An extension is signed by submitting it to AMO. Once it is signed, the extension can be installed on any version of Firefox whi...

Register C++ classes in QML At C++ side, imagine we have a class named QmlCppBridge, it implements a method called printHello(). class QmlCppBridge : public QObject { Q_OBJECT public: Q_INVOKABLE static void printHello() { qDebug() << "Hello, QML!"; } }; ...

Add-ons can be installed as: Normal add-ons, which are installed until uninstalled Temporary Add-ons (extensions only): are only installed until Firefox is restarted, or can manually uninstalled earlier. Using jpm run (Add-on SDK only): Automatically runs Firefox using a temporary profile with ...

Create separate files for header and footer(as they are common for all the pages and it does not make sense to make them a part of a single page) Keep common elements(Like Search/Back/Next etc) in separate file(The idea is to remove any kind of duplication and keeping the segregation logical) Fo...

//Add a List validation to B column. Values should be in a list var val = worksheet.DataValidations.AddListValidation("B:B"); //Shows error message when the input doesn't match the accepted values val.ShowErrorMessage = true; //Style of warning. "information" and "warn...

//Add a List validation to the C column var val3 = worksheet.DataValidations.AddIntegerValidation("E:E"); //For Integer Validation, you have to set error message to true val3.ShowErrorMessage = true; val3.Error = "The value must be an integer between 0 and 10"; //Minimum a...

//Add a DateTime Validation to column F var val4 = worksheet.DataValidations.AddDateTimeValidation("F:F"); //For DateTime Validation, you have to set error message to true val4.ShowErrorMessage = true; //Minimum allowed date val4.Formula.Value = new DateTime(2017,03,15, 01, 0,0); /...

//Add a TextLength Validation to column G var val5 = worksheet.DataValidations.AddTextLengthValidation("G:G"); //For TextLenght Validation, you have to set error message to true val5.ShowErrorMessage = true; //Minimum allowed text lenght val5.Formula.Value = 3; //Maximum allowed te...

For Getting updated or to do something before app goes live to user you can use below method. AppDidFinishLaunching - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Write your code before app launch return YES; } While ...